<template>
    <div class="login_container">
        <div class="login_box">
        <!--      头像区域-->
            <div class="avatar_box">
                <img src="../assets/images/logo.png" alt="" />
            </div>
            <!--      表单提交区域-->
            <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
                <!--        用户名-->
                <el-form-item prop="username">
                    <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
                </el-form-item>
                <!--        密码-->
                <el-form-item prop="password">
                    <el-input v-model="loginForm.password" type="password" prefix-icon="iconfont icon-3702mima"></el-input>
                </el-form-item>
                <!--        按钮区-->
                <el-form-item class="btns">
                    <el-button type="primary" @click="login">登录</el-button>
                    <el-button type="info" @click="resetLoginForm">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>

<script>
export default {
  data () {
    return {
      // 这是登录表单的数据绑定对象
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      //这是表单的验证规则对象
      loginFormRules: {
        //验证用户名是否合法
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        //验证密码是否合法
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]

      }
    };
  },
  methods: {
    //点击重置按钮，重置登录表单
    resetLoginForm(){
      // console.log(this);
      this.$refs.loginFormRef.resetFields();
    },
    login(){
      //valid是验证结果的布尔值
      this.$refs.loginFormRef.validate(async valid=>{
       if(!valid) return;
       //post中填写登录入口
       const {data:result} = await this.$http.post('login',this.loginForm);
       console.log(result);
       if(result.meta.status != 200){
         return this.$message.error('登录失败！', '');
       }
       this.$message.success(result.data.username+',登录成功！');
       //储存token
       window.sessionStorage.setItem('token',result.data.token);
       //页面的跳转
       this.$router.push('/home');
      })
    }
  }
};
</script>

<style lang="less" scoped>
.login_container {
  height: 100%;
  background-color: #5dbe8a;
}
.login_box {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  .avatar_box {
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 10px;
    width: 130px;
    height: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    box-shadow: 0 0 10px #ddd;
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eeeeee;
    }
  }
  .login_form {
    box-sizing: border-box;
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
  }
  .btns {
    display: flex;
    justify-content: flex-end;
  }
}
</style>
